New Terrova with a new Cornfield Transducer mount. The Cornfield mount will not stay tight where you install it directly above the motor. I have reached out to Cornfield and no reply yet. The collar on the Terrova seems like it is slightly smaller diameter than it should be maybe. Has anyone installed one of these and had to use the rubber sheet material to make the diameter a little larger for better hold???

With the arm+tube+cable+transducer there is a lot of weight on the end of that aluminum arm so I can see it wanting to swing out of position if it is not mounted solid to that TM collar.

I would put the rubber stuff in their anyways.